Clutch mechanism.



C. MUEHLEISEN.

CLUTCH MEOHANISM.

AYPLIUATION FILED JAN. 23, 1911.

Patented May 9, 1911.

UNITED STATES PATENT OFFICE.

CARL MUEHLEISEN, OF BERLIN, GERMANY, ASSIGNOR TO MERGENTHALER LINOTYPECOMPANY, A CORPORATION OF NEW YORK.

CLUTCH MECHANISM.

Application led January 23, 1911.

To all whom it may concern.:

Be it known that I, CARL MUEHLEISEN, a citizen of the United States ofAmerica, residing at 88 Chausseestrasse, Berlin, N. 4, in the Empire ofGermany, have .invented new and useful Improvements in Clutch Mechanism,of which the following is a specification.

The present invention consists of improvements in the driving clutch ofthe linecasting machine knowncommereially under the trade mark Linotypethe accompanying figure being a plan of the preferred constructionalform thereof.

Referring to this figure, 1 is the driving band and 2, the drivingpulley loose on the main shaft 3, and 4, the clutch controlling bar. Thepulley 2 is prevented from moving along the shaft 3 by a collar 5 fastthereon, on one side, and one or more arms 6 fast on the same shaft, onthe other. The outer end of each arm 6 has a bell-crank lever fulnerumed on it at 7. One arm, 8, of each lever has one of the clutchblocks 9 pivotally connected to it at 10, while the other arm, 11,extends toward the shaft 3 where it has connected with it a disk 12.This latter has its center alined, or nearly so, with the axis of theshaft 3.

18 is a spring pulling on a clutch block 9 from a point on the arm Gnear the shaft 3, and tending to pull it away from the pulley 2 therebyholding the disk 12 at a working distance from the outer end of theshaft 3.

14 is a lever fulcrumed at 15 on the machine frame. The free Vend of oneof its arms, stands outside and opposite the disk 12, while the free endof the other arm is loosely connected with the bar 4.

16 is a spring pulling on the lever 14 from a fixed point on themachine, and tending to connect the clutch.

17 is a set screw adjustable in the above mentioned free end of thelever 14 to regulate the length of its engagement with the disk 12. Whenthe operator pushes the bar 4 toward the shaft '3, the set screw 17 ismoved away from the disk 12 far enough to allow the spring or springs 13to pull the clutch blocks inwardly and disconnect the clutch. When thebar 4 is moved in the opposite direction away from the said shaft, thespring 16 will act to rock lever 14 on its axis, whereby the bell cranklever will also be rocked and the clutch block 9 moved out-Specification of Letters Patent.

Patented May 9, 1911.

serial No. 604,049.

wardly against the rim of the pulley, thereby connecting the clutch.

Having described my invention, I declare that what I claim and desire tosecure by Letters Patent is 1.. In a line-casting machine of the classdescribed, the combination with the loose driving pulley and the clutchcontrolling bar, of one or more arms fast on the main shaft; abell-crank lever fulcrumed on each arm; a clutch block connected to eachlever; a spring to pull each clutch block away from the said pulley; alever connected to the said bar and, by a device, such as a set screw,adjustable therein, to the bellcrank lever or all of the said bell-cranklevers, the said device only contacting with it or them; and a springpulling on that lever from a relatively fixed point in such a way thatthe movement of the said bar in one direction, allows the clutch to beopened, and in the other, allows it to be closed.

2. In combination with a shaft, a driving pulley loose thereon, a clutchblock operatively connected with the shaft and movable outwardly toengage the pulley, a spring tending to pull the block inwardly, a movlable controlling lever operatively engaging the clutch block and actingwhen moved in. one direction to release said block to permit its springto act, and a spring acting on said controlling lever and operating tomove the same in the opposite direction.

3. In combination with a shaft, a driving pulley loose thereon, an armfixed to the shaft, a lever pivoted to the arm and rovided with twolimbs, a clutch block connected to one of the limbs of the lever andmovable outwardly to engage the pulley, a. spring acting on said blockand tending to disengage the same from the pulley, and means adapted toact on the other limb of the lever to engage the block with the pulley.

4. In combination with a shaft, a driving pulley loose thereon, anoutwardly movable clutch block adapted to frictionally engage thepulley, a lever operatively connected with the shaft and connected alsowith said clutch block, said lever being extended inwardly andterminating at or about the axis of the shaft and free of the same, andmeans for operating on the inner end of said lever.

5. In combination with a shaft, a driving pulley loose thereon, an armon the shaft, a lever pivoted to t-he arm and provided with two limbs,one of which extends inwardly and terminates at or about the axis of theshaft, a clutch block carried by the other limb of the lever, and meansadapted to act on the inwardly extending limb of said lever to operatethe clutch block.

6. In combination with a shaft, a driving pulley loose thereon, an armfixed to the shaft, a bell crank lever pivoted to the arm, a clutchblock carried by the bell crank lever and adapted to frictionally engagethe rim of the pulley, a spring acting on the clutch block and tendingto disengage the same from the pulley, a Clutch operating lever adaptedto engage the bell crank lever, a spring acting on said clutch operatinglever and tending to engage the clutch block with the pulley, and meansfor moving the clutch operating lever against the pull of the spring.

In witness whereof I have hereunto set my hand in the presence of twowitnesses. CARL MUEHLEISEN. lVtnesses:

VVOLDEMAR HAUPT, HENRY HASPER.

G opies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, D. C.

